Implementing Schema.org markup on www.UniProt.org

The UniProt knowledgebase (UniProtKB) is a resource of protein sequences and functional information whose centerpiece is the expert-curated UniProtKB/Swiss-Prot section. UniProt data is accessible at www.uniprot.org via a user-friendly interface and a REST API that serves the data in several formats, including our own RDF formalization since 2008. In September 2014 we added Schema.org markup in RDFa encoding on our webpages. Schema.org is a community vocabulary for marking up webpages to help search engines understand the published content.